Last night at MoMA, Saint Laurent celebrated the 50th Anniversary of the French film Belle de Jour with a star-studded screening. Hosted by the brand's creative director Anthony Vaccarello, the screening drew the likes of Debbie Harry, Chloë Sevigny, Susan Sarandon, as well as the 1968 film's inimitable star Catherine Deneuve.

Seven years after founding his eponymous brand, Yves Saint Laurent signed on to handcraft the wardrobe of Deneuve's titular character, a housewife by day and sex-worker by night. The film played a role in both Deneuve and Saint Laurent's rises to stardom; Deneuve's role would earn her a BAFTA nomination and a career-defining partnership with the film's pioneering director Luis Buñuel, while Saint Laurent's looks—namely a slick-black vinyl trench with knit sleeves—would cement his status as a master of feminine-cool mystique, also setting a new standard for French film costume design.

Vaccarello has demonstrated his shared appreciation for French screen stars; his first muse as Saint Laurent's creative director was Brit-French actress Charlotte Gainsbourg, whose mother Jane Birkin is the Hermès bag's namesake and an honorary national icon. But as the screening last night proved, the house's OG muses are just as ever-present. See inside the event below.